This family tree dates back to December 31, 1994, as detailed component changes are detailed from that point only.Â
Note: Since 2014, companies are allowed to have multiple classes of stock included in the index. This tree does not include these changes.
3Com
-Sepracor
--Henry Schein(1st inclusion)
---MCI(2nd inclusion)
----Amylin Pharmaceuticals
-----Automatic Data Processing
Acclaim Entertainment
-Phycor
--McLeodUSA
---Cephalon(1st inclusion)
----XM Satellite Radio
-----Stericycle
------Hologic(2nd inclusion)
-------Willis Towers Watson
--------Zoom Video Communications
---------MongoDB
----------Shopify
Adaptec
-BEA Systems
--The DIRECTV Group
---DIRECTV(name change)
----BioMarin Pharmaceutical
-----Atlassian
ADC Telecommunications
-Marvell Technology Group(1st inclusion)
--Liberty Media(old)(2nd inclusion)
---STARZ Group(name change)
----Kraft Foods(new)
-----Kraft Heinz(name change)
Adobe Systems
-Adobe(name change)
Adolph Coors
-PeopleSoft
--Cognizant Technology Group
AES
-FORE Systems
--Lycos
---Broadcom(Old)
----PayPal Holdings
Alexander & Baldwin
-General Nutrition Companies
--NTL(1st inclusion)
---Ariba
----ImClone Systems
-----Fastenal(2nd inclusion)
American Greetings
-Rexall Sundown
--Applied Micro Circuits
---DENTSPLY International(1st inclusion)
----TripAdvisor
-----Wynn Resorts(2nd inclusion)
------Seattle Genetics
-------SeaGen(name change)
--------Take-Two Interactive(2nd inclusion)
American Power Conversion(1st inclusion)
-Check Point Software Technologies
--Palo Alto Networks
Amgen
Andrew(2nd inclusion)
-EchoStar Communications
--Dish Network(name change)
---Akamai Technologies(2nd inclusion)
----ASML Holding
Apple Computer
-Apple(name change)
Applied Materials
AST Research
-Maxim Integrated Products(1st inclusion)
--Henry Schein(2nd inclusion)
---CoStar Group(1st inclusion)
----Moderna
-----MicroStrategy
Atlantic Southeast Airlines
-McAfee Associates
--Network Associates(name change)
---Human Genome Sciences
----Level 3 Communications(2nd inclusion)
-----NVIDIA(2nd inclusion)
Atmel
-Lamar Advertising
--Ross Stores(3rd inclusion)
Autodesk(1st inclusion)
-MedImmune
--Cephalon(2nd inclusion)
---Sirius XM Radio(2nd inclusion)
----Arm Holdings
Bay Networks
-Oxford Health Plans
--Vitesse Semiconductor
---Ryanair Holdings(1st inclusion)
----Sirius Satellite Radio(1st inclusion)
-----Sirius XM Satellite Radio(name change)
------O'Reilly Automotive
Biogen(old)
-SanDisk(1st inclusion)
--Urban Outfitters(2nd inclusion)
---Randgold Resources
----Marriott International
Biomet
-Foster Wheeler
--Netflix(1st inclusion)
---Regeneron Pharmaceuticals
BMC Software(1st inclusion)
-Novellus Systems
--Activision
---Activision Blizzard(name change)
----The Trade Desk
Bob Evans Farms
-Fort Howard
--Stewart Enterprises
---RF Micro Devices
----Research In Motion
-----SBA Communications
------IDEXX Laboratories(2nd inclusion)
Bruno's
-Northwest Airlines
--Mercury Interactive
---Joy Global
----Perrigo(2nd inclusion)
-----Netflix(2nd inclusion)
Centocor
-eBay
--DoorDash
Charming Shoppes
-Boston Chicken
--LM Ericsson Telephone(1st inclusion)
---Lam Research(2nd inclusion)
----Liberty Global(2nd inclusion)
-----Match Group
------Warner Bros. Discovery(3rd inclusion; name change)
Chiron
-Akamai Technologies(1st inclusion)
--Vodafone Group
---NetApp(2nd inclusion)
----Pinduoduo
-----PDD Holdings(name change)
Cintas(1st inclusion)
-F5 Networks
--Lam Research(3rd inclusion)
Cirrus Logic
-Reuters Holdings
--SDL
---Brocade Communications Systems
----Garmin
-----Ctrip international(2nd inclusion; name change)
------Trip.com Group(name change)
-------Datadog
Cisco Systems
Comcast Class A Special
-Comcast Class A
--Comcast
Compuware
-Autodesk(2nd inclusion)
Cracker Barrel Old Country Store
-CBRL Group(name change)
--PMC-Sierra
---Patterson-UTI Energy(1st inclusion)
----LM Ericsson Telephone(3rd inclusion)
-----Hologic(1st inclusion)
------CTrip.com International(1st inclusion)
-------Kraft Foods(old)
--------Mondelez International(name change)
Dell Computer
-Dell(name change)
--VimpelCom
---Ulta Salon, Cosmetics & Fragrances
----Ulta Beauty(name change)
-----Marvell Technology Group(2nd inclusion)
Dollar General
-RPM
--Tech Data
---Network Solutions
----Verisign(1st inclusion)
-----Verisk Analytics
DSC Communications
-Qwest Communications International
--Gemstar International Group
---Gemstar-TV Guide International(name change)
----Patterson Dental
-----Patterson(name change)
------Dollar Tree(3rd inclusion)
-------AppLovin
Electronic Arts(1st Inclusion)
-Catamaran
--JD.com
---CDW(3rd inclusion)
Food Lion
-Global Crossing
--Palm
---Protein Design Labs
----C.H. Robinson Worldwide
-----T-Mobile US(2nd inclusion, name change)
Genzyme
-Genzyme General(name change)
--Genzyme(name change)
---Alexion Pharmaceuticals
----Honeywell International
Giddings & Lewis
-Wisconsin Central Transportation
--Comair Holdings
---RealNetworks
----Synopsys(2nd inclusion)
-----Checkfree
------Baidu.com
-------Baidu(name change)
--------CoStar Group(2nd Inclusion)
HealthCareCompare
-First Health Group(name change)
--Broadvision
---Charter Communications(1st inclusion)
----Whole Foods Market(1st inclusion)
-----Warner Chilcott
------Western Digital
-------Keurig Dr Pepper(name change; 3rd inclusion)
Herman Miller(1st inclusion)
-Electronics For Imaging
--Adelphia Communications
---Dollar Tree Stores(2nd inclusion)
----NII Holdings
-----Hansen Natural(2nd inclusion)
------Monster Energy(name change)
Hon Industries
-Gartner Group
--USA Networks
---USA Interactive(name change)
----InterActiveCorp(name change)
-----IAC/InterActiveCorp(name change)
------BMC Software(2nd inclusion)
-------Charter Communications(2nd inclusion)
Informix
-Apollo Group(1st inclusion)
--Flextronics International
---Discovery Communications(2nd inclusion)
----Workday
Intel
Intelligent Electronics
-PETsMART(1st inclusion)
--Citrix Systems
---American Electric Power
J.B. Hunt Transport Services(1st inclusion)
-PairGain Technologies
--Lincare Holdings(1st inclusion)
---Network Appliance(1st inclusion)
----NetApp(name change)
-----KLA-Tencor(3rd inclusion)
------KLA(name change)
Kelly Services
-ADTRAN
--Amazon.com
Lam Research(1st inclusion)
-Quintiles Transnational
--Inktomi
---Invitrogen
----Patterson-UTI Energy(2nd inclusion)
-----Focus Media Holding
------News Corporation
-------21st Century Fox(name change)
--------Fox Corporation(name change)
---------Lucid Group
----------Splunk(2nd inclusion)
-----------Linde plc
LDDS Communications
-WorldCom(name change)
--MCI WorldCom(name change)
---WorldCom(name change)
----Lincare Holdings(2nd time)
-----Infosys Technologies
-------Meta Platforms(name change)
LEGENT
-Altera
--Incyte
---ZScaler
LIN Broadcasting
-Glenayre Technologies
--Chancellor Media
---Conexant Systems
----First Health Group(2nd inclusion)
-----Liberty Media International(1st inclusion)
------Liberty Global(name change)
-------Mylan(2nd inclusion?)
--------Copart
Linear Technology
-Shire
--lululemon athletica
Lotus Development
-MFS Communications
--Fastenal(1st inclusion)
---i2 Technologies
----American Power Conversion(2nd inclusion)
-----Ryanair Holdings(2nd inclusion)
------SanDisk(2nd inclusion)
-------NetEase
--------GlobalFoundries
Magma Power
-Stratacom
--Ascend Communications
---Siebel Systems
----Intuitive Surgical
McCormick & Company
-CNET Networks
--CNET(name change)
---Symantec(2nd inclusion)
----NortonLifeLock(name change)
-----CDW(2nd Inclusion)
------Airbnb
MCI Communications(1st inclusion)
-Yahoo!
--MercardoLibre
Microsoft
Mobile Telecommunications Technologies
-Corporate Express
--VoiceStream Wireless
---NVIDIA(1st inclusion)
----Wynn Resorts(1st inclusion)
-----Maxim Integrated Products(3rd inclusion)
------Crowdstrike
Molex
-Cadence Design Systems(1st Inclusion)
--First Solar
---Texas Instruments
Multimedia
-Intuit(1st inclusion)
--Jacor Communications
---Uniphase
----JDS Uniphase(name change)
-----Level 3 Communications(3rd inclusion)
------Illumina(1st inclusion)
-------Nuance Communications
--------Tractor Supply
---------Cadence Design Systems(2nd inclusion)
NEXTEL Communications
-Sepracor(2nd inclusion)
--Steel Dynamics
---Virgin Media(3rd inclusion)
----Liberty Media(new-Includes Liberty Braves)
-----DENTSPLY SIRONA(2nd inclusion; name change)
------Xcel Energy
Nordson
-IDEXX Laboratories(1st inclusion)
--Allied Waste Industries
---Sanmina
----Sanmina-SCI(name change)
-----Monster Worldwide(2nd inclusion)
------SeaGate Holdings(2nd inclusion)
-------SeaGate Technology(name change)
--------VeriSign(2nd inclusion)
---------Constellation Energy(moved from it's own part of the tree)
Nordstrom
-VISX
--Juniper Networks
---Priceline.com
----Priceline Group(name change)
-----Booking Holdings(name change)
Novell
-CYTYC
--PETsMART(2nd inclusion)
---Pharmaceutical Product Development
----Qiagen
-----Fossil
------NXP Semiconductors(1st inclusion)
-------J.B. Hunt Transport Services(3rd inclusion)
--------ANSYS
Oracle Systems
-Oracle(name change)
--Tesla Motors
---Tesla(name change)
Outback Steakhouse
-Cambridge Technology Partners
--Metromedia Fiber Network
---ICOS
----Intersil
-----Expedia(1st inclusion)
------American Airlines Group
-------DexCom
PACCAR
Pacific Telecom
-U.S. Robotics
--Herman Miller(2nd inclusion)
---Rational Software
----Gentex
-----NTL(2nd inclusion)
------Virgin Media(name change)
-------J.B. Hunt Transport Services(2nd inclusion)
--------Micron Technology(2nd inclusion)
PacificCare Health Systems
-IDEC Pharmaceuticals
--Biogen Idec(name change)
---Biogen(new)(name change)
Paging Network
-Immunex
--Sigma-Aldrich(2nd inclusion)
---Skyworks Solutions
----Baker Hughes
Parametric Technology
-Integrated Device Technology
--Pixar
---Millicom International Cellular
----Green Mountain Coffee Roasters(1st inclusion)
-----Equinix
------Walgreens Boots Alliance
-------Super Micro Computer
--------Axon Enterprise
Paychex
Perrigo(1st inclusion)
-Bed Bath & Beyond
--Cintas(2nd inclusion)
Pioneer Hi-Bred International
-America Online
--Republic Industries
---Ross Stores(1st inclusion)
----NEXTLINK Communications
-----XO Communications(name change)
------Apollo Group(2nd inclusion)
-------Analog Devices
Price/Costco
-Costco Companies(name change)
--Costco Wholesale(name change)
QUALCOMM
Quantum
-CIENA
--Career Education
----Alphabet(Name change)
QVC
-A. Schulman
--Synopsys(1st inclusion)
---TMP Worldwide(1st inclusion)
----Monster Worldwide(name change)
-----ATI Technologies
------Liberty Media Interactive
-------Liberty Ventures(name change)
--------Qurate Retail Group(name change)
---------Advanced Micro Devices
Roadway Services
-Gateway 2000
--Netscape Communications
---CMGI
----CDW Computer Centers
-----CDW(name change)
------Leap Wireless
-------Maxim Integrated Products(2nd inclusion)
--------Electronic Arts(2nd inclusion)
SCIMED Life Systems
-KLA Instruments(2nd inclusion)
--KLA-Tencor(name change)
---CSX
Sigma-Aldrich(1st inclusion)
-Abgenix
--Expeditors International of Washington
---Expedia(2nd inclusion]
----Peloton Interactive
-----Old Dominion Freight Line
Sonoco Products
-HBO & Company(2nd inclusion)
--Comverse Technology
---Logitech International
----Whole Foods Market(2nd inclusion)
-----Hasbro
------Splunk(1st inclusion)
-------Diamondback Energy
St. Jude Medical
-Starbucks
Staples
-Endo International
--Microchip Technology(2nd inclusion)
Stewart & Stevenson Services
-Fiserv
--GE HealthCare
Stryker
-Jefferson Smurfit
--Smurfit-Stone Container(name change)
---Discovery Holding(1st inclusion)
----Discovery Communications(name change)
-----Life Technologies(2nd inclusion; name change)
------Green Mountain Coffee Roasters(2nd inclusion)
-------Keurig Green Mountain(name change)
--------Norwegian Cruise Line Holdings
---------Synopsys(3rd inclusion)
Sun Microsystems
-Cerner
--Fortinet
Sybase
-Dollar Tree Stores(1st inclusion)
--Millenium Pharmaceuticals
---Urban Outfitters(1st inclusion)
----Vertex Pharmaceuticals
Tecumseh Products
-Micron Electronics
--Legato Systems
---Exodus Communications
----Gilead Sciences
Tele-Communications
-At Home
--Andrx Group
---Ross Stores(2nd inclusion)
----Hansen Natural(1st inclusion)
-----Mattel
------Align Technologies
-------Roper Technologies
Tellabs
-CA
--CA Technologies(name change)
---NXP Semiconductors(2nd inclusion)
Tyson Foods
-PanAmSat
--KMart Holding
---Sears Holdings(name change)
----Dish Network(2nd inclusion)
-----PepsiCo
U.S. Healthcare(2nd inclusion)
-Cascade Communications
--U.S. Office Products
---VERITAS Software
----Celgene
-----Exelon
Vanguard Cellular Systems
-Concord EFS
--Teva Pharmaceutical Industries
---Viacom
----Take-Two Interactive Software(1st inclusion)
-----Okta
------Enphase Energy
-------Coca-Cola Europacific Partners
Viking Office Products
-Level 3 Communications(1st inclusion)
--Express Scripts
---United Continental Holdings(2nd inclusion; name change)
----United Airlines(name change)
-----Docusign
------Rivian Automotive
-------onsemi
Willamette Industries
-Komag
--Dura Pharmaceuticals
---Intuit(2nd inclusion)
Worthington Industries
-QLogic
--Red Hat
---American Eagle Outfitters
----UAL(1st inclusion)
-----FLIR Systems
------Avago Technologies
-------Broadcom(New)(name change)
Xilinx
-AstraZeneca
Yellow
-Read-Rite
--SunGard Data Systems
---Microchip Technology(1st inclusion)
----Illumina(2nd inclusion)
-----Palantir Techologies
Constellation Energy(Moved to Nordson tree)